US8410589B2 - Lead frame, resin package, semiconductor device and resin package manufacturing method - Google Patents
Lead frame, resin package, semiconductor device and resin package manufacturing method Download PDFInfo
- Publication number
- US8410589B2 US8410589B2 US12/545,176 US54517609A US8410589B2 US 8410589 B2 US8410589 B2 US 8410589B2 US 54517609 A US54517609 A US 54517609A US 8410589 B2 US8410589 B2 US 8410589B2
- Authority
- US
- United States
- Prior art keywords
- resin
- lead frame
- outer frame
- pressure loss
- die pad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 258
- 239000011347 resin Substances 0.000 title claims abstract description 258
- 239000004065 semiconductor Substances 0.000 title description 16
- 238000004519 manufacturing process Methods 0.000 title description 13
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 description 39
- 230000000052 comparative effect Effects 0.000 description 14
- 229920000106 Liquid crystal polymer Polymers 0.000 description 12
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 238000005530 etching Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000004645 polyester resin Substances 0.000 description 5
- 229920001225 polyester resin Polymers 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 2
- 229960002218 sodium chlorite Drugs 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 2
- 235000019801 trisodium phosphate Nutrition 0.000 description 2
- POFFJVRXOKDESI-UHFFFAOYSA-N 1,3,5,7-tetraoxa-4-silaspiro[3.3]heptane-2,6-dione Chemical compound O1C(=O)O[Si]21OC(=O)O2 POFFJVRXOKDESI-UHFFFAOYSA-N 0.000 description 1
- IHCCLXNEEPMSIO-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 IHCCLXNEEPMSIO-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 229960003280 cupric chloride Drugs 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49541—Geometry of the lead-frame
- H01L23/49565—Side rails of the lead frame, e.g. with perforations, sprocket holes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
- H01L21/565—Moulds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49541—Geometry of the lead-frame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49541—Geometry of the lead-frame
- H01L23/49548—Cross section geometry
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4912—Layout
- H01L2224/49175—Parallel arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01012—Magnesium [Mg]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01019—Potassium [K]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/0102—Calcium [Ca]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01078—Platinum [Pt]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01079—Gold [Au]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
Definitions
- the present invention relates to a lead frame, a resin package, a semiconductor device, and a resin package manufacturing method.
- a lead frame comprises a central die pad that is fixed to the main body of the lead frame by means of four suspended leads extending from the main body along the diagonal lines of the die pad.
- a plurality of die bonding leads are arranged around the die pad.
- the suspended leads may also be constructed so as to connect the die pad body to the outer frame.
- Such a lead frame is described for example in Japanese Patent Application Laid-open No. H5-315512.
- the lead frame described in Japanese Patent Application Laid-open No. H5-315512 is provided with an open region through which resin material can escape when resin material is injected into the mold during resin molding.
- the inventors in this case investigated lead frames to resolve these problems, and discovered that with conventional lead frames, the injected resin material divides into a plurality of resin streams as it flows from the injection site, and that welds tend to occur at the confluences, detracting from the quality of the manufactured resin package.
- the lead frame of the present invention is a lead frame applied during resin molding of a resin package having a polygonal plane shape, comprising: an outer frame, a plurality of bonding leads extending from the outer frame towards the inside thereof, a die pad disposed inside the outer frame and separated from the bonding leads, a plurality of connecting leads linking the outer frame with the die pad, an excess resin reservoir provided in the outer frame and holding excess resin during resin molding, and a pressure loss section for communicating between the excess resin reservoir and the space between the outer frame and die pad, wherein the pressure loss section extends from a position corresponding to one corner of the polygonal resin package, when the minimum value of the opening area of the pressure loss section perpendicular to a direction of resin flow in the pressure loss section during resin molding is defined as S 1 , and the average value of the opening area of the excess resin reservoir perpendicular to the direction of resin flow in the excess resin reservoir during resin molding is defined as S 2 , S 1 ⁇ S 2 is satisfied.
- the polygonal shape includes, for example,
- the resin When the lead frame is sandwiched between molds during resin injection and a resin material is injected from one corner into the space between the molds, the resin converges at a corner located on a line extending diagonally from this corner, but the excess resin reservoir communicates with this corner via the pressure loss section. That is, because the resin material that tends to accumulate in the corner is transported to the excess resin reservoir by means of the pressure loss section, not only is weld formation suppressed at the corner, but since the minimum value S 1 of the opening area of the pressure loss section perpendicular to the direction of flow of the resin is small, the pressure loss section is able to maintain the resin pressure at a suitable level in the corner so that the resin material fills every part of the mold in that area.
- the pressure loss section can be formed by half-etching or the like at the desired location.
- the opening area of the pressure loss section perpendicular to the direction of resin flow is smaller than the opening area perpendicular to the direction of resin flow would be in the case of a through hole formed with the same planar shape. This is why the pressure loss section can have the aforementioned effect of adequately controlling the resin flow.
- those of the connecting leads that are close to the corners are preferably bent. Because the lead frame of the present invention is provided with a pressure loss section, the connecting leads are disposed so as to avoid the connection point of the pressure loss section, but the resin pressure exerted on the connecting leads during resin injection is reduced if the leads are bent, thereby preventing deformation of the connecting leads.
- the bent connecting leads are each preferably formed from a first lead parallel to the bonding lead near this connection lead and a second lead following a diagonal line passing through the corners of the polygonal resin package.
- the flow of resin changes direction when it impacts the first lead during resin injection, and flows into the corner while extending from the first lead to the second lead.
- welds are likely to occur due to collisions between two resin flows coming from different directions, but when the resin flow extends from the first lead to the second lead, weld formation is suppressed because the resin converges with the other resin flow at a position somewhat apart from the corner.
- the surface of the lead frame is preferably black-oxide treated.
- Black-oxide treating the lead frame greatly strengthens the adhesive force between the resin material and the lead frame, making the lead frame less likely to detach from the manufactured resin package.
- a resin package manufacturing method using the lead frame described above comprises a step of preparing the aforementioned lead frame, a step of disposing the lead frame within a space sandwiched between two opposing molds, and a step of injecting a resin material into the space.
- the resin material is preferably a liquid crystal polymer in the resin package manufacturing method of the present invention.
- the advantage of using a liquid crystal polymer is that it allows a highly rigid resin package to be manufactured.
- the temperature T 1 (° C.) of the mold during injection of the resin material and the flow initiation temperature T 2 (° C.) of the resin material are preferably such that T 1 (° C.) ⁇ T 2 (° C.) ⁇ 70 (° C.). If the resin is injected under these temperature conditions, enough resin will flow into the mold to form a resin molded body with a regular appearance. This also increases the adhesive strength between the lead frame and the resin.
- the lead frame is also embedded in the resin material in such a way that the surfaces of the die pad and parts of the bonding leads are exposed to air.
- This resin package is of high quality because weld formation is suppressed.
- the semiconductor device of the present invention is provided with the resin package described above and a semiconductor element fixed to the die pad. Because of the high quality of the resin package, this semiconductor device is resistant to deterioration of the semiconductor element due to deterioration of the resin package.
- the lead frame of the present invention makes it possible to form a high-quality resin package, and a resin package manufactured using the lead frame of the present invention is of high quality.
- FIG. 1 is a plane view of a lead frame
- FIG. 2 is a plane view of unit pattern 1 (front) in the lead frame
- FIG. 3 is a plane view of unit pattern 1 (reverse) in the lead frame
- FIG. 4 is an expanded oblique view of region IV shown in FIG. 3 ;
- FIG. 5 is an expanded oblique view of region V shown in FIG. 3 ;
- FIG. 6 is a plane view of unit pattern 1 (reverse) for purposes of explaining the flow of resin material
- FIG. 7 is a plane view of a resin package
- FIG. 8 is an oblique view of a resin package
- FIG. 9 is a cross-section along arrows IX-IX in the resin package shown in FIG. 7 ;
- FIG. 10 is a plane view of a unit pattern (reverse) of a comparative example
- FIG. 11 is a plane view of a specific lead frame site showing a variant of excess resin reservoir H 4 ;
- FIG. 12 is a model cross-section showing the configuration of an air-tightness testing unit used in air-tightness testing.
- FIG. 1 is a plane view showing lead frame 100 of an embodiment.
- the X axis, Y axis and Z axis in this figure form a three-dimensional Cartesian coordinate system.
- Lead frame 100 comprises lead frame body 10 consisting of a flexible metal plate on which a plurality of unit patterns 1 are arranged in a matrix. In this figure, there are 15 unit patterns 1 in the X-axis direction and 4 in the Y-axis direction, for a total of 60 unit patterns 1 on one lead frame 100 . One resin package is formed within each unit pattern 1 . That is, lead frame 100 is applied during resin molding of a resin package.
- Both ends of lead frame body 10 in the Y-axis direction are provided with a plurality of holes 2 into which pins are inserted in order to position lead frame 100 and transport lead frame 100 in the X-axis direction.
- the Z axis is the direction of thickness of lead frame 100 .
- FIG. 2 is a plane view of a unit pattern 1 (front) in the lead frame.
- Outer frame F of the lead frame body is located on the outside of unit pattern 1 .
- Unit pattern 1 is provided with outer frame F, a plurality of bonding leads L 2 extending from outer frame F towards the inside, die pad (island) D arranged inside outer frame F without touching bonding leads L 2 , a plurality of connection leads L 1 (L 31 , L 32 ) linking outer frame F and die pad D, excess resin reservoirs H 3 , H 4 and H 5 in outer frame F for holding excess resin during resin molding, and pressure loss sections H 1 and H 2 , which communicate between excess resin reservoir H 3 and the space between outer frame F and die pad D.
- Connection leads are also called suspended leads.
- outer frame F The inner edge of outer frame F is square or rectangular, die pad D is also square or rectangular, and bonding leads L 2 extend in four directions perpendicular to the four sides of these squares or rectangles. Bonding leads L 2 and the semiconductor element fixed in the center of die pad D are connected by bonding wires (not shown).
- a resin package is manufactured having a plane shape with 4 sides roughly parallel to the 4 sides of square or rectangular die pad D.
- the resin package can also be made in the shape of a polygon other than a quadrangle.
- Pressure loss sections H 1 and H 2 extend from a position corresponding to one corner of a resin package with a polygonal plane shape.
- resin material flows into pressure loss sections H 1 and H 2 in the direction of the X axis.
- S 1 is the minimum value of the opening areas of pressure loss sections H 1 and H 2 perpendicular to the direction of resin flow (X-axis direction) in the pressure loss sections during resin molding.
- S 2 is the average value of the opening areas of excess resin reservoirs H 3 , H 4 and H 5 perpendicular to the direction of resin flow (Y-axis direction) in excess resin reservoirs H 3 , H 4 and H 5 during resin molding.
- S 1 is less than S 2 .
- Groove H 6 which is used to suction out internal gas during resin molding, is connected on the reverse side to the end of excess resin reservoir H 5 .
- Groove 6 extends in the X-axis direction, and a gas suction conduit is provided in the mold above this groove, with the suction outlet of this conduit in groove 6 .
- Pressure loss section H 2 and excess resin reservoirs H 3 and H 5 are through holes penetrating from the front to the reverse of outer frame F of the lead frame in the direction of thickness (Z-axis direction).
- FIG. 3 is a plane view of a unit pattern 1 (reverse) in the lead frame.
- Pressure loss section H 1 , excess resin reservoir H 4 and gas suction groove H 6 consist of grooves formed on the reverse side of the lead frame by half-etching of the reverse surface. The half-etched region is shown by shading. The ends of bonding leads L 2 , the edges of die pad D and connection leads L 1 (L 31 , L 32 ) are also half-etched. When the lead frame is made of copper, a cupric chloride solution for example can be used as the solution for copper half-etching.
- Pressure loss section H 1 is positioned at a corner of the resin package, and is connected (communicates) with roughly quadrangular space J between outer frame F and one corner of die pad D.
- Pressure loss section V 1 consisting of a groove formed by half-etching of the same reverse surface is connected to this space J. Pressure loss sections H 1 and H 2 extend in the X-axis direction, but pressure loss section V 1 extends in the Y-axis direction and connects to rectangular opening VL 1 .
- Opening VL 1 is a through hole penetrating between the front and reverse of the lead frame, and its longer direction is the Y-axis direction.
- Opening HL 1 is a through hole penetrating between the front and reverse of the lead frame, and its longer direction is the X-axis direction.
- Excess resin reservoirs H 3 through H 5 are positioned between outer region C and inner region B of outer frame F, with a plurality of bonding leads L 2 extending from inner region B, and space J adjoining inner region B.
- FIG. 4 is an expanded oblique view of region IV in FIG. 3 .
- Pressure loss section H 1 is a groove that communicates with space J, and pressure loss section H 2 is a through hole connected to pressure loss section H 1 .
- Pressure loss section H 1 has width w 1 and depth t 2 , and its opening area perpendicular to the X axis is (w 1 ⁇ t 2 ).
- Pressure loss section H 2 has width w 1 and depth t 1 , and its opening area perpendicular to the X axis is (w 1 ⁇ t 1 ). Because t 1 >t 2 , the minimum value S 1 of the opening areas of pressure loss sections H 1 and H 2 perpendicular to the X axis is w 1 ⁇ t 2 .
- Pressure loss section H 2 communicates with excess resin reservoir H 3 .
- Excess resin reservoir H 3 has width w 2 and depth t 1 , and its opening area S 2 (H 3 ) perpendicular to the direction of resin flow (Y-axis direction) is w 2 ⁇ t 1 .
- W 2 here is greater than w 1
- t 1 is the thickness of the outer frame.
- Pressure loss section V 1 with width w 1 and depth t 2 communicates with space J, and pressure loss section V 1 is also connected to opening VL 1 with width w 1 and depth t 1 .
- the resin material flowing outwards from space J is constrained most strongly by pressure loss section H 1 , and less strongly by pressure loss section H 2 , before arriving at excess resin reservoir H 3 .
- Part of the resin material flowing outwards from space J is strongly constrained by pressure loss section V 1 before arriving at opening VL 1 .
- outer frame F has thickness t 1
- pressure loss section H 1 has minimum depth t 2
- t 2 is less than t 1 .
- Pressure loss section H 1 can be formed by half-etching at that location, and the opening area of pressure loss section H 1 perpendicular to the direction of resin flow is smaller than it would be if a through hole with the same plane shape was formed in the outer frame. Consequently, pressure loss section H 1 can provide the effects described above by adequately constraining the flow of resin.
- FIG. 5 is an expanded oblique view of region V in FIG. 3 .
- Excess resin reservoir H 4 which functions as a pressure loss section, is connected to the latter stage of excess resin reservoir H 3 , and excess resin reservoir H 4 has width w 2 and depth t 2 . That is, the flow of resin would be hard to control if the space inside excess resin reservoir H 3 were connected without restrictions, but since the latter stage of excess resin reservoir H 3 is connected to excess resin reservoir H 4 , which has a small opening area perpendicular to the Y-axis direction, the unrestricted resin flow can be constrained, thereby preventing any extreme drop in the resin pressure within the resin package-forming space.
- the opening area S 2 (H 4 ) of excess resin reservoir H 4 perpendicular to the direction of resin flow (Y-axis direction) is w 2 ⁇ t 2 .
- Excess resin reservoir H 5 is connected as a through hole to excess resin reservoir H 4 , and excess resin reservoir H 5 has width w 2 and depth t 1 , providing a large opening area S 2 (H 5 ) of w 2 ⁇ t 1 perpendicular to the Y-axis direction which allows sufficient resin to accumulate.
- Groove H 6 with width w 1 and depth t 2 is connected to excess resin reservoir H 5 , and the opening area in groove 6 perpendicular to the X-axial direction in which the resin flows is w 1 ⁇ t 2 .
- the ratio of the lengths of excess resin reservoirs H 3 , H 4 and H 5 in the Y-axis direction is 3:2:1 for example, and the average value of the opening areas S 2 perpendicular to the Y axis ( ⁇ S 2 (H 3 ) ⁇ 3+S 2 (H 4 ) ⁇ 2+S 2 (H 5 ) ⁇ 1 ⁇ /6) is greater than the minimum value S 1 of the opening areas of the pressure loss sections.
- the average value of opening areas S 2 can be calculated by first multiplying the area S 2 of each tiny section along the Y axis by the number of tiny sections, and then dividing by the number of tiny sections.
- the upper and lower surfaces of the lead frame shown in FIGS. 4 and 5 are in contact with the flat surfaces of the upper and lower molds during resin injection, and the shape that defines each of the opening areas described above is a rectangle.
- FIG. 6 is a plane view of unit pattern 1 (reverse) for explaining the flow of resin material.
- the lead frame When resin is injected, the lead frame is sandwiched between a pair of molds having facing surfaces perpendicular to the Z axis, and resin material is injected into the space between molds from resin injection gate IJ provided in space K at one corner of the resin package.
- Resin injection gate IJ is provided in one of the molds, and in this case it is provided on the reverse side of the resin package.
- Resin material converges as shown by the arrows on space J in the corner diagonally across from space K, and excess resin reservoirs H 3 through H 5 are connected via pressure loss sections H 1 and H 2 to this corner space J.
- connection leads L 1 extend along a diagonal line connecting two corners of the die pad, and these connection leads L 1 are connected to outer frame F.
- the remaining connection leads L 31 and L 32 are located closer to corner spaces K and J than these connection leads L 1 , and are bent. Because this lead frame is provided with pressure loss sections H 1 and H 2 , connection leads L 31 and L 32 are arranged so as to avoid the connection site of pressure loss section H 1 .
- the resin pressure exerted on connection leads L 31 and L 32 during resin injection is reduced by the bends in these connection leads, thereby inhibiting deformation of connection leads L 31 and L 32 .
- the bent connection leads L 31 and L 32 consist of first leads L 31 parallel to the bonding leads L 2 adjacent to connection leads L 31 and L 32 , and second leads L 32 extending along a diagonal line passing through corners of the polygonal resin package.
- the flow of resin changes direction when it impacts first lead L 31 during resin injection, and flows into corner space J while extending from first lead L 31 to second lead L 32 .
- Welds are likely to occur due to collision between two resin flows flowing from different directions into corner space J having pressure loss section H 1 , but a resin flow that extends from first lead L 31 to second lead L 32 will converge with another resin flow at a position somewhat apart from the corner as shown by the arrow, thereby inhibiting the formation of welds.
- the ends of the reverse faces of bonding leads L 2 and the reverse faces of first leads L 31 and second leads L 32 are formed by half-etching, and these half-etched regions allow the passage of resin material even when sandwiched between molds.
- FIG. 7 is a plane view of a resin package.
- the resin material is shown by dotted lines.
- the plane shape of the resin package is roughly square, with an indented center that is defined by four side walls.
- the space between outer surface WL 1 and inner surface WL 2 of these side walls is filled with resin, and during resin molding resin fills the roughly square region OL which is surrounded by four straight lines following the long directions of openings HL 1 and VL 1 .
- This roughly square region OL defines the resin-filled space between molds.
- the lead frame together with the resin is cut along the outer edge of this roughly square region OL or in other words along the outer surfaces of the side walls of the resin package during molding, thereby completing the resin package.
- the outer sides of the package can be polished as necessary.
- FIG. 8 is an oblique view of a resin package.
- Die pad D is located inside indentation DP at the center of the resin package.
- the surfaces of die pad D and parts of bonding leads L 2 of the lead frame are exposed to air, while the rest of the lead frame is embedded in the resin material.
- Bonding leads L 2 are partly embedded in the bottom of side wall SW.
- Semiconductor element SM is die-bonded onto die pad D, and this semiconductor element SM is electrically connected by bonding wires W to the exposed surfaces of bonding leads L 2 . Because the uncut lead frame is provided with pressure loss sections and the like, weld formation is suppressed and the resulting resin package is of high quality.
- a lid (LID) consisting of a transparent flat plate is fixed to the tops of side walls SW, ensuring the air-tightness of the package.
- a semiconductor device of an embodiment is provided with the resin package described above together with a semiconductor element SM fixed to die pad D. Because of the high quality of the resin package, this semiconductor device is resistant to deterioration of the semiconductor element due to deterioration of the resin package.
- the lid (LID) consists of a transparent material when semiconductor element SM is an optical element or optical sensor, but in other cases may consist of an opaque material.
- FIG. 9 is a cross-section of the package shown in FIG. 7 along arrows IX-IX, showing lead frame 100 sandwiched between molds M 1 and M 2 .
- Lead frame 100 is made of copper, and its surface has been black-oxide treated.
- An aqueous solution containing sodium chlorite, trisodium phosphate and sodium hydroxide for example can be used for the black-oxide treatment solution.
- Black-oxide treating the lead frame dramatically increases the adhesive strength between the resin material and the lead frame, making the manufactured resin package less likely to detach from the lead frame.
- a resin package such a lead frame 100 is prepared and then sandwiched between two facing molds M 1 and M 2 . That is, lead frame 100 is arranged in the space between molds M 1 and M 2 .
- the resin material RE in this space is injected via resin injection gate IJ.
- Resin injection gate IJ is the outlet of a resin injection conduit provided in mold M 1 , and this resin injection conduit also has inlet IJ 1 for resin material RE provided on the outside of mold M 1 .
- the facing surfaces of molds M 1 and M 2 are flat on the outside of rectangular region OL (see FIG. 7 ), but project as rectangular columns in the area corresponding to indentation DP of the resin package inside rectangular region OL (see FIG. 8 ), with those parts corresponding to the side walls forming indented spaces CSW as oblong grooves.
- Temperature T 1 (° C.) of the molds during injection of the resin material and resin material flow initiation temperature T 2 (° C.) are such that T 1 (° C.) ⁇ T 2 (° C.) ⁇ 70 (° C.).
- T 2 (° C.) When resin material is injected under such temperature conditions, enough resin flows inside molds M 1 and M 2 to form a resin molded body with a regular appearance.
- Another advantage is that the adhesive strength between the lead frame and resin is increased.
- liquid crystal polymers ordinary have low hygroscopicity, the reliability of the semiconductor element on die pad D can be maintained, and burr can be controlled, which should result in improved resin package productivity.
- T 1 of both molds reaches 300° C.
- the resulting resin molded body is removed from the molds when the mold temperatures reach 252° C.
- the oxidized copper is stripped from the black-oxide treated surface, which is then given a conductive plate of Au or the like to complete the resin package.
- FIG. 10 is a place view of a unit pattern (reverse) of a comparative example.
- connection leads extend along the diagonals from the 4 corners of die pad D.
- the resin flows converge at the diagonal as shown by the arrows, forming a weld.
- thermoplastic resin As the resin material, and examples of such thermoplastic resins include polystyrene resin, acrylic resin, polycarbonate resin, polyester resin, polyamide resin, polyacetal resin, polyphenylene ether resin, fluorine resin, polyphenylene sulfide resin, polysulphone resin, polyarylate resin, polyetherimide resin, polyethersulphone resin, polyetherketone resin, liquid crystal polyester resin, polyamideimide resin, polyimide resin and the like, with polyester resin, polyamide resin, polyphenylene sulfide resin and liquid crystal polyester resin being preferred, and liquid crystal polyester resin (liquid crystal polymer) being especially preferred from the standpoint of fluidity, heat resistance and rigidity. These resins can be used individually, or more than one can be used simultaneously.
- a suitable inorganic filler can also be mixed with this resin material.
- inorganic fillers that can be mixed with the resin material include glass fiber (milled glass fiber, chopped glass fiber and the like), glass beads, hollow glass spheres, glass powder, mica, talc, clay, silica, alumina, potassium titanate, wollastonite, calcium carbonate, magnesium carbonate, sulfate of soda, calcium sulfate, barium sulfate, calcium sulfite, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, calcium silicate, quartz sand, silica stone, quartz, titanium oxide, zinc oxide, iron oxide, graphite, molybdenum, asbestos, silica alumina fiber, alumina fiber, plaster fiber, carbon fiber, carbon black, white carbon, diatomaceous earth, bentonite, sericite, shirasu (volcanic ash), black lead and other inorganic fillers, and potassium titanate whiskers, alumina whiskers, aluminum borate whiskers, silicon carbonate whiskers, silicon nitride whiskers
- FIG. 11 is a plane view of a specific lead frame site showing a variant of excess resin reservoir H 4 , which functions as a pressure loss section.
- excess resin reservoir H 4 described previously was formed by half etching of the lead frame, but excess resin reservoir H 4 can be made to function as a pressure loss section if its width w 3 is made smaller than width w 2 . In this case, excess resin reservoir H 4 can be formed after half etching, or from a through hole. Similar variants of pressure loss sections are also possible in other places.
- the lead frame shown in FIGS. 2 and 3 was prepared, and this lead frame was black-oxide treated by being immersed in an aqueous solution containing sodium chlorite, trisodium phosphate and sodium hydroxide.
- the black-oxide treated lead frame was arranged in the space between molds M 1 and M 2 .
- the molds were then cooled, and once the mold temperatures reached 252° C. the molded resin package was removed from the molds.
- a resin package was manufactured as in Example 1 except that a lead frame having a through hole substituted for groove H 6 formed by half-etching was used as the lead frame shown in FIGS. 2 and 3 .
- a resin package was manufactured as in Example 1 except that a lead frame having a through holes substituted for excess resin reservoir H 4 and groove H 6 was used as the lead frame shown in FIGS. 2 and 3 .
- a resin package was manufactured as in Example 1 except that a lead frame having through holes substituted for pressure loss sections H 1 and groove H 6 was used as the lead frame shown in FIGS. 2 and 3 .
- a resin package was manufactured as in Example 1 but using the lead frame shown in FIG. 10 .
- a resin package was manufactured as in Example 2 except that the space between molds M 1 and M 2 was filled with the melted liquid crystal polymer at the point when the temperature (T 1 ) of molds M 1 and M 2 reached 261° C.
- a resin package was manufactured as in Example 3 except that the space between molds M 1 and M 2 was filled with the melted liquid crystal polymer at the point when the temperature (T 1 ) of molds M 1 and M 2 reached 261° C.
- a resin package was manufactured as in Comparative Example 1 except that the space between molds M 1 and M 2 was filled with the melted liquid crystal polymer at the point when the temperature (T 1 ) of molds M 1 and M 2 reached 261° C.
- a resin package was manufactured as in Comparative Example 2 except that the space between molds M 1 and M 2 was filled with the melted liquid crystal polymer at the point when the temperature (T 1 ) of molds M 1 and M 2 reached 261° C.
- Air-tightness test Air-tightness testing was next performed using the resin packages of Examples 1 through 6 and Comparative Examples 1 through 4.
- FIG. 12 is an outline showing air-tightness testing system 101 used in this air-tightness testing.
- air-tightness testing system 101 comprises chamber 102 , gas supply part 103 that supplies inactive He gas to the inside of chamber 102 , and gas exhaust part 104 that exhausts air from the inside of chamber 102 through the bottom of chamber 102 .
- resin package 105 was arranged upside-down on the bottom of chamber 102 so that side walls SW of resin package 105 surrounded gas exhaust part 104 at the bottom of chamber 102 .
- the gas in space S formed by chamber 102 and the side walls SW of resin package 105 was removed by gas exhaust part 104 , fixing resin package 105 to the bottom of chamber 102 .
- He was supplied to chamber 102 via gas supply part 103 , and the air-tightness of the main body of the resin package was investigated by detecting He at gas exhaust part 104 .
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Geometry (AREA)
- Manufacturing & Machinery (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Lead Frames For Integrated Circuits (AREA)
- Led Device Packages (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPP2008-214349 | 2008-08-22 | ||
JP2008214349 | 2008-08-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20100044844A1 US20100044844A1 (en) | 2010-02-25 |
US8410589B2 true US8410589B2 (en) | 2013-04-02 |
Family
ID=41695582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/545,176 Active 2029-11-30 US8410589B2 (en) | 2008-08-22 | 2009-08-21 | Lead frame, resin package, semiconductor device and resin package manufacturing method |
Country Status (5)
Country | Link |
---|---|
US (1) | US8410589B2 (zh) |
JP (1) | JP5247626B2 (zh) |
KR (1) | KR101591094B1 (zh) |
CN (1) | CN101656243B (zh) |
TW (1) | TWI479625B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015179733A1 (en) * | 2014-05-23 | 2015-11-26 | Materion Corporation | Air cavity package |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4961398B2 (ja) * | 2008-06-30 | 2012-06-27 | 株式会社日立製作所 | 半導体装置 |
JP2012089563A (ja) * | 2010-10-15 | 2012-05-10 | Sanken Electric Co Ltd | 半導体モジュール |
WO2017181399A1 (en) * | 2016-04-22 | 2017-10-26 | Texas Instruments Incorporated | Improved lead frame system |
US10573581B2 (en) * | 2016-09-29 | 2020-02-25 | Texas Instruments Incorporated | Leadframe |
US10186478B2 (en) * | 2016-12-30 | 2019-01-22 | Texas Instruments Incorporated | Packaged semiconductor device with a particle roughened surface |
JP7021970B2 (ja) * | 2018-02-13 | 2022-02-17 | 株式会社三井ハイテック | リードフレーム、樹脂付きリードフレーム、樹脂付きリードフレームの製造方法および半導体装置の製造方法 |
JP6986539B2 (ja) * | 2019-11-25 | 2021-12-22 | Towa株式会社 | 樹脂成形済リードフレームの製造方法、樹脂成形品の製造方法、及びリードフレーム |
Citations (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05315512A (ja) | 1992-05-07 | 1993-11-26 | Nec Corp | 半導体装置用リードフレーム |
JPH06188336A (ja) | 1992-12-18 | 1994-07-08 | Japan Synthetic Rubber Co Ltd | 半導体の封止方法 |
JPH0740389A (ja) | 1993-07-26 | 1995-02-10 | Mitsubishi Gas Chem Co Inc | 立体配線基板の成形法 |
US5766649A (en) * | 1995-12-15 | 1998-06-16 | Nec Corporation | Resin sealing mold die set with less resin remainder for semiconductor device |
JP2000058734A (ja) | 1998-08-05 | 2000-02-25 | Sony Corp | リードフレーム |
JP2000141411A (ja) | 1998-11-04 | 2000-05-23 | Sekisui Chem Co Ltd | 射出成形用金型 |
US20020037604A1 (en) * | 2000-09-15 | 2002-03-28 | Lee Sang-Kyun | Lead frame, semiconductor package having lead frame, and method of manufacturing semiconductor package |
US6501183B2 (en) * | 1998-12-02 | 2002-12-31 | Hitachi, Ltd. | Semiconductor device and a method of manufacturing the same and an electronic device |
US6555899B1 (en) * | 1999-10-15 | 2003-04-29 | Amkor Technology, Inc. | Semiconductor package leadframe assembly and method of manufacture |
US6603194B2 (en) * | 2001-02-15 | 2003-08-05 | Matsushita Electric Industrial Co., Ltd. | Lead frame and method for fabricating resin-encapsulated semiconductor device using the same |
US6627976B1 (en) * | 1999-10-15 | 2003-09-30 | Amkor Technology, Inc. | Leadframe for semiconductor package and mold for molding the same |
US6737735B2 (en) * | 2002-02-27 | 2004-05-18 | Nec Electronics Corporation | Semiconductor device wiring lead frame having resin flow control plates |
US20040207056A1 (en) | 2003-04-16 | 2004-10-21 | Shinko Electric Industries Co., Ltd. | Conductor substrate, semiconductor device and production method thereof |
US6911719B1 (en) * | 2000-02-22 | 2005-06-28 | Oki Electric Industry Co., Ltd. | Lead frame for resin sealed semiconductor device |
US20050245002A1 (en) | 2004-04-30 | 2005-11-03 | Tadatoshi Danno | Method of manufacturing a semiconductor device and used for the same |
US7049685B2 (en) * | 2000-08-24 | 2006-05-23 | Micron Technology, Inc. | Packaged microelectronic devices with pressure release elements and methods for manufacturing and using such packaged microelectronic devices |
US20060110855A1 (en) * | 2004-11-22 | 2006-05-25 | Asm Assembly Materials Ltd. | Leadframe with enhanced encapsulation adhesion |
US20070262423A1 (en) * | 2006-05-12 | 2007-11-15 | Stats Chippac Ltd. | Integrated circuit encapsulation system with vent |
US20080029857A1 (en) * | 2006-08-07 | 2008-02-07 | Nec Electronics Corporation | Semiconductor device comprising an excess resin portion, manufacturing method thereof, and apparatus for manufacturing semiconductor device comprising a excess resin portion |
US20090026595A1 (en) * | 2007-07-27 | 2009-01-29 | Kiyoaki Kadoi | Semiconductor device package |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07111305A (ja) * | 1993-10-12 | 1995-04-25 | Fujitsu Miyagi Electron:Kk | 半導体装置の製造方法及びこれに使用する金属支持枠及びモールド金型 |
JP3751496B2 (ja) * | 2000-03-02 | 2006-03-01 | 松下電器産業株式会社 | リードフレーム及びそれを用いた樹脂封止型半導体装置の製造方法 |
-
2009
- 2009-08-19 JP JP2009190089A patent/JP5247626B2/ja active Active
- 2009-08-21 CN CN2009101673563A patent/CN101656243B/zh not_active Expired - Fee Related
- 2009-08-21 KR KR1020090077412A patent/KR101591094B1/ko active IP Right Grant
- 2009-08-21 TW TW098128207A patent/TWI479625B/zh not_active IP Right Cessation
- 2009-08-21 US US12/545,176 patent/US8410589B2/en active Active
Patent Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05315512A (ja) | 1992-05-07 | 1993-11-26 | Nec Corp | 半導体装置用リードフレーム |
JPH06188336A (ja) | 1992-12-18 | 1994-07-08 | Japan Synthetic Rubber Co Ltd | 半導体の封止方法 |
JPH0740389A (ja) | 1993-07-26 | 1995-02-10 | Mitsubishi Gas Chem Co Inc | 立体配線基板の成形法 |
US5766649A (en) * | 1995-12-15 | 1998-06-16 | Nec Corporation | Resin sealing mold die set with less resin remainder for semiconductor device |
JP2000058734A (ja) | 1998-08-05 | 2000-02-25 | Sony Corp | リードフレーム |
JP2000141411A (ja) | 1998-11-04 | 2000-05-23 | Sekisui Chem Co Ltd | 射出成形用金型 |
US6501183B2 (en) * | 1998-12-02 | 2002-12-31 | Hitachi, Ltd. | Semiconductor device and a method of manufacturing the same and an electronic device |
US6555899B1 (en) * | 1999-10-15 | 2003-04-29 | Amkor Technology, Inc. | Semiconductor package leadframe assembly and method of manufacture |
US6627976B1 (en) * | 1999-10-15 | 2003-09-30 | Amkor Technology, Inc. | Leadframe for semiconductor package and mold for molding the same |
US6911719B1 (en) * | 2000-02-22 | 2005-06-28 | Oki Electric Industry Co., Ltd. | Lead frame for resin sealed semiconductor device |
US7049685B2 (en) * | 2000-08-24 | 2006-05-23 | Micron Technology, Inc. | Packaged microelectronic devices with pressure release elements and methods for manufacturing and using such packaged microelectronic devices |
CN1344024A (zh) | 2000-09-15 | 2002-04-10 | 三星Techwin株式会社 | 引线框架及具有引线框架的半导体封装和半导体封装的制造方法 |
US20020037604A1 (en) * | 2000-09-15 | 2002-03-28 | Lee Sang-Kyun | Lead frame, semiconductor package having lead frame, and method of manufacturing semiconductor package |
US6603194B2 (en) * | 2001-02-15 | 2003-08-05 | Matsushita Electric Industrial Co., Ltd. | Lead frame and method for fabricating resin-encapsulated semiconductor device using the same |
US6737735B2 (en) * | 2002-02-27 | 2004-05-18 | Nec Electronics Corporation | Semiconductor device wiring lead frame having resin flow control plates |
US20040207056A1 (en) | 2003-04-16 | 2004-10-21 | Shinko Electric Industries Co., Ltd. | Conductor substrate, semiconductor device and production method thereof |
JP2004332105A (ja) | 2003-04-16 | 2004-11-25 | Shinko Electric Ind Co Ltd | 導体基材、半導体装置及びそれらの製造方法 |
US20050245002A1 (en) | 2004-04-30 | 2005-11-03 | Tadatoshi Danno | Method of manufacturing a semiconductor device and used for the same |
JP2005317829A (ja) | 2004-04-30 | 2005-11-10 | Renesas Technology Corp | 半導体装置の製造方法およびそれに用いられるリードフレーム |
US20060110855A1 (en) * | 2004-11-22 | 2006-05-25 | Asm Assembly Materials Ltd. | Leadframe with enhanced encapsulation adhesion |
US20070262423A1 (en) * | 2006-05-12 | 2007-11-15 | Stats Chippac Ltd. | Integrated circuit encapsulation system with vent |
US20080029857A1 (en) * | 2006-08-07 | 2008-02-07 | Nec Electronics Corporation | Semiconductor device comprising an excess resin portion, manufacturing method thereof, and apparatus for manufacturing semiconductor device comprising a excess resin portion |
US20090026595A1 (en) * | 2007-07-27 | 2009-01-29 | Kiyoaki Kadoi | Semiconductor device package |
Non-Patent Citations (2)
Title |
---|
Chinese Office Action for Chinese Patent Application No. 200910167356.3 dated Sep. 25, 2012, with English translation. |
Japanese Office Action for Japanese Patent Application No. P2009-190089 dated Jan. 8, 2013, with English translation. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015179733A1 (en) * | 2014-05-23 | 2015-11-26 | Materion Corporation | Air cavity package |
Also Published As
Publication number | Publication date |
---|---|
TW201025536A (en) | 2010-07-01 |
KR20100023766A (ko) | 2010-03-04 |
JP5247626B2 (ja) | 2013-07-24 |
JP2010074152A (ja) | 2010-04-02 |
TWI479625B (zh) | 2015-04-01 |
KR101591094B1 (ko) | 2016-02-02 |
CN101656243A (zh) | 2010-02-24 |
CN101656243B (zh) | 2013-06-12 |
US20100044844A1 (en) | 2010-02-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8410589B2 (en) | Lead frame, resin package, semiconductor device and resin package manufacturing method | |
KR20170105130A (ko) | 리드 프레임 및 반도체 장치 | |
JP2018016026A (ja) | 液体供給部材の製造方法 | |
JP5217039B2 (ja) | 電子部品の樹脂封止方法およびそれを用いて製造された電子部品封止成形品 | |
US20100213586A1 (en) | Semiconductor package and manufacturing method thereof | |
JP4451338B2 (ja) | 樹脂封止金型、それを用いた樹脂封止装置、および、樹脂封止方法 | |
JP5148445B2 (ja) | 半導体装置の製造方法及び半導体装置の製造装置 | |
TWI623073B (zh) | 樹脂密封裝置及樹脂密封方法、電子零件之製造方法、引線框架 | |
US6737735B2 (en) | Semiconductor device wiring lead frame having resin flow control plates | |
US10964637B2 (en) | Package and light emitting device | |
JP2012227254A (ja) | Led素子用リードフレーム基板及びその製造方法 | |
JP2014236114A (ja) | モールドパッケージおよびその製造方法 | |
TWM564823U (zh) | Semiconductor package substrate and package structure thereof | |
JP2007081153A (ja) | 半導体装置の製造方法 | |
TW201507067A (zh) | 半導體裝置及其製造方法 | |
JP6372737B2 (ja) | リードフレーム、樹脂付リードフレームおよびその製造方法、ならびにledパッケージおよびその製造方法 | |
JP2005134341A (ja) | マイクロプレート | |
JP5134500B2 (ja) | プリント配線板を用いた電子部品の樹脂封止方法 | |
JP2012142344A (ja) | 半導体装置 | |
CN112768413A (zh) | 一种封装基板及半导体芯片封装结构 | |
JP4451996B2 (ja) | 中空半導体パッケージ及び製造方法 | |
KR20050091566A (ko) | 반도체 패키지 제조용 양면 몰드 | |
JP2005340309A (ja) | 樹脂封止型半導体装置およびその製造方法 | |
KR20070013727A (ko) | 반도체 패키지 제조용 리드프레임 구조 | |
JP2004023017A (ja) | 中空パッケージ及びラインセンサ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SUMITOMO CHEMICAL COMPANY, LIMITED,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MATSUMI, YASUO;MAEDA, MITSUO;SIGNING DATES FROM 20090828 TO 20090902;REEL/FRAME:023226/0803 Owner name: SUMITOMO CHEMICAL COMPANY, LIMITED, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MATSUMI, YASUO;MAEDA, MITSUO;SIGNING DATES FROM 20090828 TO 20090902;REEL/FRAME:023226/0803 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 8 |